Compressor HVAC: Service and Repair

AC compressor, replacement

Operation number: 87404-2

Note! Some variation in the illustrations may occur, but the essential information is always correct.

Removal

Note! Removal steps in this procedure may contain installation details.


Warning! Follow the safety instructions for work on the air conditioning system. Refer to: Refrigerant, safety regulations Technician Safety Information.

Note! First read the instructions covering slow and fast leaks. Refer to: Oil air conditioning (A/C) system, filling Oil Air Conditioning (A/C) System, Filling.

Drain the refrigerant from the AC system. Refer to: Refrigerant, draining Refrigerant, Draining







Remove the following items:
- Air cleaner housing Refer to: Air cleaner housing, B6324S5 Service and Repair
- The auxiliaries belt. Refer to: Auxiliary belt, B6324S5 Service and Repair.




Torque: M6, 10 Nm





Slacken the tensioner using a 19 mm fixed wrench. Leave the tensioner in a slackened position. Use a 3 mm pin.





Torque: M8, 24 Nm

Torque: M10, 50 Nm






Note! Plug the terminals of the compressor using the transport plugs from the new compressor.

Torque: M6, 10 Nm

Torque: M8, 24 Nm

Installation

To install, reverse the removal procedure

Vacuum pump the air conditioning system. Refer to: Vacuum pumping Vacuum Pumping.
Fill the air conditioning system with refrigerant. Refer to: Refrigerant, filling Filling With Refrigerant.
Leak-trace the air conditioning system. Refer to: Leak tracing, fluorescent tracing agent / UV lamp Leak Tracing, Fluorescent Tracing Agent/UV Lamp or Refer to: Leak tracing, electronic leak tracer Leak Tracing, Electronic Leak Tracer.
Carry out a performance test on the climate control system. Refer to: Climate system, performance test Climate System, Performance Test.